This game is still under active development.Be aware that any unused content you find may become used or removed in the future. Please only add things to the article that are unlikely to ever be used, or went unused for some time. If they do get used, please remove them from the page and specify in the edit summary!

To do:

Alpha 6 Prototype

There seems to be folders in bms_textures_dir.vpk relating to the upcoming Xen. Check if they're used in the game or not. There are also particle (.pcf) files relating to Xen.

Furthermore there is an unused bm_c4 something map which can be accessed via the console where you're given a tau cannon and the long jump but nothing else.

Black Mesa started off as an ambitious fan recreation of Half-Life in Half-Life 2's engine, and was later sanctioned by Valve as an Official Half-Life Product². Somebody had to release a new Half-Life game, and it sure as hell wasn't going to be Valve.

Unused Texture Parts

A neat developer comment is sitting below this periodic table. Thanks Michael Dayah! The message section of this texture is hidden within the alpha channel.

A note as to what molecule structure the calendar is showing was hidden in the alpha channel of its texture.

A decal that sits above ceiling turrets. The center piece can't be seen in-game, but the texture contains an easter egg of "Tarman" from the film Return of the Living Dead. Additionally, the Tarman section is hidden within the alpha channel of the image, meaning it still wouldn't be visible in-game even if the turret was removed.